Tire-protector.



PATENTED MAR. 13, 1906.

H. P. PALIN.

TIRR PROTECTOR.

APPLICATION FILED JUNE 15.1905.

' cover or sleeve to which the sleeve or UNITED srArEs PATENT: oFFIoi;

HENRY P. PALIN, OF NGRTH TTLEBRO, MASSACHUSETTS.

i TmE-PRoTETQR. i

To' all whom it may concern:

Be it known that I, HENRY P. PALIN, of North Attleboro, in the county of Bristol and State of Massachusetts, have invented cer'- tain new and Protectors, of which lthe following is a specification.

The invention relates especially to rubber tires for vehicle-wheels iii-which metal rivets are 'employed on the tread-surface of the outer tube of the tire or on the. tread side of a protect the tire and toprevent slipping.

Sometimes tires are protector. sleeves or which provided with leather covers having rivets pass through the sheet of material of cover is com osed, the rivet passing through a Washer or ur on the tread Side and then headed down upon the washer. As usually constructed flat burs-or Washers are employed and 'the hole for the rivet is of uniform diameter throughout, .and when the head of the rivet is worn down to the washer the rivet will become loosened.

Theobject of this invention is to so form the bur and rivet that not only will the bur retard the Wear' of the'rivet andwill wear down with the rivet, butat'the same time the shank of the rivet willbe so constructed as to form a continuous head as fast as the bur wears back and prevent the loosenvention.

rIhe invention will lng of the rivet or bur until the bur is entirel worn through. ll form protuberances prevent slipping of the tire, as well as to take up the wear. now be fully described, and the novel features thereof will beparticularly pointed out ine the claims at the closev of the specificatiomreference being had to the accompanying drawings, which form a part hereof.

In the drawings, Figure 1 is a' p lan view of a yportion of aprotector-sleeve having lrivets 4ssecured thereto in accordance with this 'nvention. Fig. 2 is an enlarged sectional view-of a single rivet and bur, showin(T the shank of the eeve and the bur down, illustrating embodying the in- Fig. 3 is a sectional view similar'to Fig. 2 after the rivet has as inuse. Fig. 4 is a one forni of construction plan of Fig. 2. Fig. 5

isa plan of Fig. 3. v Fig. Gis a sectional view showing a modified form of construction of Specification of Letters Patent. Application med June 15. 1905. serial No. 265,355.

incline. Fi

useful Improvements in Tire- The 'rivets and burs wi on the tread-surface to been headed downv Patented March 13, 190s;

the bur iniwhichthe outer side is a straight 7 is a sectional View showing another mo ification of the bur is convex.- Referrin -now to the drawings, lrepresents the sieve or are attached. y

In the form shown in Figs. 1 to 5, inclusive, the washer or bur 2 is shaped somewhat like the frustum of a cone, with coneaved sides 3, forming a broad'base and formed with a downwardly-tapering hole 4 through the center, the hole at the t'op beine of nearly the same diameter a's the tdp of the bur, 'so that the rim 5 of thebur around thetop of the hole has a rather thin edge. The concaved form of the outer sides of the bur will maintain a thinner edge ofthe rim as it wears down than it would-be if the vsides were a straight incline. The rivet is formed with a flan e 6, which. bears against the inner face of t e sleeve 1*, and the shank 7 passes up through a hole in the sleeve and through the 'central hole of the bur, as shown in Fig. 2.

The shank is then headed or riveted down,

being made of such size in rel-ation to the holeY in the bur that when riveted down it will fill the hole, as shown in Fi 3. Preferably the bur is made of hard steea ormalleable metal. The bur thus protects the rivet, retardin the wear, and by reason ofits sharp rim and): a protuberance until -very nearly worn down.

In the modification shown inFig. 6 thebur 8 is formed with the outer sides 9 a straight incline instead of concave.'

Inthev form shown in Fig. 7 the bur 9 is formed with theouter sides 10 convex.

The downwardly-.tapering form of the hole and the corresponding form of the shank of the rivet when heade down prevent the bur from falling off until the bur is worn clear through.

What I claimis* 1. A tire-protector vided with a plurality of outwardly-tapering frustum-shaped burs secured to. the treadface thereof, vsaid burs each being formed with an outWardl -flaring central hole through the .bur am? having securing means consisting of a rivet having a flange on the inner end which bears against the inner face of the protector and ashank which passes outcover, to which the rivets nd the rivet of soft sleeve or the like pro-- in whic'ffthe outer sidetapering sides it will form IOO wardly'through the sleeve and the hole in the bur, the shank of the rivet being headed IIO I v down and spread afterbeingpassed through the bur so as to completely ill the Haring hole in the bur to the outer end thereof.

2. A tire-protector sleeve or the like provided with a plurality of.outWardly-tapering frustum-shap'edmetallic burs secured to the tread face thereof, said burs each bein` formed with an outwardly flaring centra hole through the bur and having securing means consistin of a rivet having a flange on the inner end W 'ch bears against the inner face of the protector and. a shankwhich passes outwardly through the sleeve and the hole in the bnr, the shank of the rivet being headed down and spread after bein passed through the bur so as to completely fi l the'fiaring hole in the bur to the outer end thereof, the rivets being formed of softer metal than the burs.

3^. A tire-protector sleeve or the like provided with a plurality of outwardly-tapering frustum-shaped burs secured to the tread! pletely fill the flaring hole in the bur tothe outer end thereof.

4. A tire-protector.,sleeve`or the like com-l posed of tough leather and provided with a plurality of outwardly-taperin frustum-shaped burs secured to the treadace thereof, said burs each being formed with concave sides, an outwardly-Haring central hole through the burs, the diameter of the outer end 0f the hole being a littlel less than the diameter of the outer end of the bur so as to form a thin outer edge, and securing means 'for saidbur consisting of a rivet having a flange on the inner end which bears against the inner face of the protector and a shank which passes outwardly through the sleeve and the hole inthe bur and before being headed down extends beyond the end of the bur, the shank of the rivet being then headed down and spread after being passed through the bur so as to completely fill the flaring hole in the bur to the outer end thereof, said bur being made of steel and the riveft being composed of malleable Inetal. A

In testimony whereof I have affixed my signature in presence of two witnesses.

HENRY P. PALIN Witnesses:

WILLIAM A. COPELAND, ROBERT WALLACE;

ssA 

